Highly-effective alkalinityincreasing (”buffer”) powdered blend. Formulated for hobbyists maintaining particularly large, or multiple, aquaria. Helps increase pH stability in an aquarium by raising the alkalinity; continued addition raises pH until 8.3 is reached, at which point the pH remains unchanged and the alkalinity alone increases. Provides a source of carbonates, the molecule which makes up the majority by weight of aragonite, the mineral secreted by reefbuilding organisms as skeletal material. Formulated by a marine scientist.